From dd136858f1ea40ad3c94191d647487fa4f31926c Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel@debian.org>
Date: Fri, 18 Oct 2024 20:33:49 +0200
Subject: Adding upstream version 9.0.0.

Signed-off-by: Daniel Baumann <daniel@debian.org>
---
 services/repository/files/diff_test.go | 166 +++++++++++++++++++++++++++++++++
 1 file changed, 166 insertions(+)
 create mode 100644 services/repository/files/diff_test.go

(limited to 'services/repository/files/diff_test.go')

diff --git a/services/repository/files/diff_test.go b/services/repository/files/diff_test.go
new file mode 100644
index 0000000..95de10e
--- /dev/null
+++ b/services/repository/files/diff_test.go
@@ -0,0 +1,166 @@
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package files
+
+import (
+	"testing"
+
+	"code.gitea.io/gitea/models/db"
+	repo_model "code.gitea.io/gitea/models/repo"
+	"code.gitea.io/gitea/models/unittest"
+	"code.gitea.io/gitea/modules/json"
+	"code.gitea.io/gitea/services/contexttest"
+	"code.gitea.io/gitea/services/gitdiff"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestGetDiffPreview(t *testing.T) {
+	unittest.PrepareTestEnv(t)
+	ctx, _ := contexttest.MockContext(t, "user2/repo1")
+	ctx.SetParams(":id", "1")
+	contexttest.LoadRepo(t, ctx, 1)
+	contexttest.LoadUser(t, ctx, 2)
+	contexttest.LoadGitRepo(t, ctx)
+	defer ctx.Repo.GitRepo.Close()
+
+	branch := ctx.Repo.Repository.DefaultBranch
+	treePath := "README.md"
+	content := "# repo1\n\nDescription for repo1\nthis is a new line"
+
+	expectedDiff := &gitdiff.Diff{
+		TotalAddition: 2,
+		TotalDeletion: 1,
+		Files: []*gitdiff.DiffFile{
+			{
+				Name:        "README.md",
+				OldName:     "README.md",
+				NameHash:    "8ec9a00bfd09b3190ac6b22251dbb1aa95a0579d",
+				Index:       1,
+				Addition:    2,
+				Deletion:    1,
+				Type:        2,
+				IsCreated:   false,
+				IsDeleted:   false,
+				IsBin:       false,
+				IsLFSFile:   false,
+				IsRenamed:   false,
+				IsSubmodule: false,
+				Sections: []*gitdiff.DiffSection{
+					{
+						FileName: "README.md",
+						Name:     "",
+						Lines: []*gitdiff.DiffLine{
+							{
+								LeftIdx:       0,
+								RightIdx:      0,
+								Type:          4,
+								Content:       "@@ -1,3 +1,4 @@",
+								Conversations: nil,
+								SectionInfo: &gitdiff.DiffLineSectionInfo{
+									Path:          "README.md",
+									LastLeftIdx:   0,
+									LastRightIdx:  0,
+									LeftIdx:       1,
+									RightIdx:      1,
+									LeftHunkSize:  3,
+									RightHunkSize: 4,
+								},
+							},
+							{
+								LeftIdx:       1,
+								RightIdx:      1,
+								Type:          1,
+								Content:       " # repo1",
+								Conversations: nil,
+							},
+							{
+								LeftIdx:       2,
+								RightIdx:      2,
+								Type:          1,
+								Content:       " ",
+								Conversations: nil,
+							},
+							{
+								LeftIdx:       3,
+								RightIdx:      0,
+								Match:         4,
+								Type:          3,
+								Content:       "-Description for repo1",
+								Conversations: nil,
+							},
+							{
+								LeftIdx:       0,
+								RightIdx:      3,
+								Match:         3,
+								Type:          2,
+								Content:       "+Description for repo1",
+								Conversations: nil,
+							},
+							{
+								LeftIdx:       0,
+								RightIdx:      4,
+								Match:         -1,
+								Type:          2,
+								Content:       "+this is a new line",
+								Conversations: nil,
+							},
+						},
+					},
+				},
+				IsIncomplete: false,
+			},
+		},
+		IsIncomplete: false,
+	}
+	expectedDiff.NumFiles = len(expectedDiff.Files)
+
+	t.Run("with given branch", func(t *testing.T) {
+		diff, err := GetDiffPreview(ctx, ctx.Repo.Repository, branch, treePath, content)
+		require.NoError(t, err)
+		expectedBs, err := json.Marshal(expectedDiff)
+		require.NoError(t, err)
+		bs, err := json.Marshal(diff)
+		require.NoError(t, err)
+		assert.EqualValues(t, string(expectedBs), string(bs))
+	})
+
+	t.Run("empty branch, same results", func(t *testing.T) {
+		diff, err := GetDiffPreview(ctx, ctx.Repo.Repository, "", treePath, content)
+		require.NoError(t, err)
+		expectedBs, err := json.Marshal(expectedDiff)
+		require.NoError(t, err)
+		bs, err := json.Marshal(diff)
+		require.NoError(t, err)
+		assert.EqualValues(t, expectedBs, bs)
+	})
+}
+
+func TestGetDiffPreviewErrors(t *testing.T) {
+	unittest.PrepareTestEnv(t)
+	repo := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: 1})
+	branch := repo.DefaultBranch
+	treePath := "README.md"
+	content := "# repo1\n\nDescription for repo1\nthis is a new line"
+
+	t.Run("empty repo", func(t *testing.T) {
+		diff, err := GetDiffPreview(db.DefaultContext, &repo_model.Repository{}, branch, treePath, content)
+		assert.Nil(t, diff)
+		assert.EqualError(t, err, "repository does not exist [id: 0, uid: 0, owner_name: , name: ]")
+	})
+
+	t.Run("bad branch", func(t *testing.T) {
+		badBranch := "bad_branch"
+		diff, err := GetDiffPreview(db.DefaultContext, repo, badBranch, treePath, content)
+		assert.Nil(t, diff)
+		assert.EqualError(t, err, "branch does not exist [name: "+badBranch+"]")
+	})
+
+	t.Run("empty treePath", func(t *testing.T) {
+		diff, err := GetDiffPreview(db.DefaultContext, repo, branch, "", content)
+		assert.Nil(t, diff)
+		assert.EqualError(t, err, "path is invalid [path: ]")
+	})
+}
-- 
cgit v1.2.3